Water-heater.



0. F. NEWPORT.

WATER HEATER. APPLICATION rum) JUNE 19,1912.

Patepted July 29, 1913.

4 SHEETS-SHEET 1.

arZes fjl zyi orz" COLUMBIA PLANOGRAPH 60., WASHINGTON, n. x

0. P. NEWPORT. WATER HEATER.

APPLICATION FILED 311N319, 1912. I 1,068,810. Patented July 29, 1913.

4 SHEETS-SHEET 2' COLUMBIA PLANOGRAPH 60., WASHINGTON, D. c

G. P. NEWPORT. WATER HEATER. APPLICATION FILED JUNE 19, 1912.

1,068,810, Patented July 29,1913.

4 SHEETS-SHEET 3.

G. F. NEWPORT.

I WATER HEATER. APPLICATION mm JUNE 19, 1912.

1,068,8 1 O, Patented July 29, 1913.

COLUMBIA PLANOGRAPH C04. WASHINGTON, D, C.

UNITED STATES PATENT ()FFTCE.

CHARLES F. NEWPORT, OF CHICAGO, ILLINOIS.

WATER-HEATER.

Specification of Letters Patent.

Patented July 29, 1913.

Original application filed May 15, 1911, Serial No. 627,200. Divided andthis application filed June 19, V 1912. Serial No. 704,584.

To all whom it may concern:

Be it known that I, CHARLES F. NEWPORT,

a citizen of the United States, and a resident of Chicago, in the countyof Cook and State of Illinois, have invented certain new and usefulImprovements in l/Vater-Heaters; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanyingdrawings, and to the characters ofreference marked thereon, which form a part of the specification.

This invention relates to improvements in water heaters or steamboilers, more especially adapted to furnish hot water or steam toheating systems of buildings.

The invention relates more particularly to improvements in thearrangement of the lines through which the heated products of combustionpass from the fire box, in contact with the surfaces of the boiler to beheated, and thence to the smoke-box.

It relates further to means for modifying or controlling the path of theflue travel of the gases of combustion from the fire box to the smokebox to meet local draft requirements, the character of the fuel andother conditions.

My improvements are herein shown as applied to a sectional water heaterof that kind wherein the water spaces of the heater are formed in hollowor cored out cast metal sections which are grouped and secured togetherwith nipple connections in the manner of the sections of a steam or hotwater radiator to permit intercirculation of water or steamtherethrough, and are so shaped that when brought together flues areformed through which the gases of combustion pass from the fire box tothe smoke stack.

The invention consists in the matters herein set forth and moreparticularly pointed out in the appended claims.

In the drawings,-Figure 1 is a rear end elevation of a water heaterembodying my invention. Fig. 2 is a fragmentary vertical section of therear part of the heater on the line 22 of Fig. 1. Fig. 3 is a transversevertical section on the line 33 of Fig. at, the same being taken in aplane between adjacent heater sections at one side of said figure andthrough one of the heater sections at the other side thereof. Fig. 4 isa vertical section on the indirect line H of Fig. 3. Fig. 5 is afragmentary horizontal section on the line 5-5 of Fig. 3. Fig. 6 1s afragmentary vertical section on the line 66 of Fig. 5. Fig. 7 is afragmentary horizontal section on the lines 77 of Fig. 6. Fig. 8 is afragmentary perspective view of a removable plate by which to modify thepath of the flue travel for the gases of combustio-n.

As shown in the drawings, the water heater is composed of two groups ofcast metal sections 9, one at one side and the other at the other sideof an intermediate fire box 14 equipped with a fuel supporting grate 15and with an ash pit 16 therebelow. Each group comprises the intermediatesections 17, 17 and the front and rear end sections 18, 19 respectively.Each of said sections is cored out to provide therein a water space 20,and the water spaces of adjacent sections communicate with each otherthrough connecting nipples 21, 22 arranged at the bottoms and at thetops of the sections (Fig. 3). At their lower parts 23 below the firebox and at their upper parts 24; above the fire box, as well as alongtheir outer marginal parts 26, the sections 17, 18 and 19 are made ofsuch thickness as to fit closely together, as best shown in Figs. 5, 6and 7, thereby leaving no spaces at these parts for the passage ofheated gases between the sections. The central parts of the sectionsabreast the fire box, and extending from the inner side thereof to thethickened portions or rims 26 are made thinner, as shown at 27 so as toform between the thinner portions lateral passages 28 for the heatedgases that pass up- The front and rear sections 18 and 19, re-

spectively, of the heater are each shown as made of two like parts, thelateral outer sides of which fit the end ones of the intermediatesections 17. v The lateral inner sides 30 and 31, respectively, of theend sections are made thinner than the outer sides thereof andconstitute the end walls of the fire box 14'. They are joined at thecenter of the front and rear walls in any suitable manner, as forinstance by the bolts 32, which extend through lugs or flanges 33 on theadj oining edges of said wall sections. The ash pit front and rear walls85, 36 are made of thinner uncored plates and the triangular dead plates37, 87 may be employed where the thinner ash pit walls extend above thelower sides of the grates to bring the same flush with the inner facesof the fire box and walls. The said intermediate and end sections may beattached together in assembled relation by means of the rods 34 whichare arranged at the upper and lower ends of the sections, said rodshaving the form of headed bolts which are screw-threaded and providedwith nuts to clamp the sections together. The said intermediate sections17 are formed above the fire box 14 and at their inner sides withinwardly extending, overhanging portions 40, between which the fuel isfed to the fire box 14 from a magazine 41 located above and supported inany suitable manner on the said sections, said magazine having at itsfront end one or more openings closed by doors 42, 42 through whichopenings fuel is fed to the magazine. Each of said sections 17, 18 and19 is provided at its lower end, and generally below the level of thefire box, with two openings 43, 44 located one laterally outside theother, and said openings, when the sections are assembled and fixedtogether, constitute outer and inner flues 45, 46 through which theheated gases of combustion pass from the fire box 14 on their way to theexit flue or smoke stack of the heater. Said fines are separated bypartitions 47 which are also cored out to constitute a portion of thewater space of the heater. At the front end of the heater the flues 4-5,46 communicate with each other through a transverse passage 48. The rearends of said inner flues 46 communicate directly with a smoke box 49having an opening 50 by which to connect the exit pipe or smoke stackthereto. The rear ends of the outer flues 45 are also adapted tocomn1uni cate directly with the smoke box, but said rear ends of theflues 45 are normally closed by, what may be termed, direct draftdampers 51. At the front of the heater are arranged doors which closeopenings through which access may be had to the flue passages 45, 46 andassociated parts.

The lateral passages 28 formed between the thinner portions or fingers27 of the heater sections communicate at their outer sides with theouter lines 45, so that the heated gases of combustion pass from thefire box, through the passages 28, directly to said outer flues.Normally, with the direct draft damper 51 closed, as shown in full linesin Fig. 5, the paths of flue travel are forwardly through the outerflues 45,

direct draft dampers 51 may be operated from the front of the furnacethrough the medlum of endwise reciprocable actuating rods attached attheir rear ends to crank arms 76 connected with the dampers, said rods75 extending at their forward ends through suitable guides 78 at thefront of the heater.

In order to permit the path of flue travel of the heated gases ofcombustion to be adjusted to correspond to different conditions ofdraft, and also to fuels of different characters, the partitions 47 maybe provided at different parts in their lengths with narrow,longitudinally spaced vertical openings 79, 79 adapted to be closed byremovable members or plates 80, 80. Each of said closure members 80consists of a narrow, elongated plate arranged to cover one of theopenings 79 between adjacent sections of the partitions 47. They areshown as removably fixed in place by means of lugs 83 which extendlaterally therefrom near their tops and bottoms, and are provided attheir ends with notches 84, 84 to fit over ribs 85, 85 on the adjacentfaces of the partition sections at the partition openings 79. In orderto permit ready removal of the said plates the said ribs 85 may bediscontinued at 86 to form upper and lower open spaces or notches ofsuch dimensions that when the plates are raised to bring the lugs 88opposite the open spaces the plates may be laterally removed. Inreplacing the plates the lugs are passed laterally through the notches86 until the notches 84 are in line with the ribs 85, whereupon, whenthe plates are dropped, the lugs drop below the notches 86 whereby thesaid plates are removably locked in place. hen said removable plates areemployed the adjustment of the path of flue travel. will usually beeffected by first removing the forwardmost one or more of the plates 80so as to thereby afford communication from one flue to the other atpoints intermediate the ends of the flues and thereby shorten the pathof flue travel. One or more of said plates may be thus removed to varythe path of the flue travel to conform to different conditions of draft,or to suit different kinds of fuel. In some instances all. of saidplates may be thus removed. Thus it will be seen that therpath of fluetravel is variable or adjustable within wide ranges to adapt the heaterto difierent conditions of draft and fuel. Access to the removablepartition plates 80 may be readily had through the door openings of thefront doors 52, 52 before referred to.

The rocking bars 53, 53 of the grate incline downwardly and outwardlyfrom a central tubular ridge bar 54 to the heater sections and aremounted at their lower and upper ends in sockets formed in the innersides of the heater sections 17 and the said ridge bar 54, respectively.Said rocker bars carry grate fingers 55, 55 of any usual or preferredconstruction, and are adapted to be rocked on their axes to shake thefire bed, by means of the actuating bars 56, 56 which are reciprocatedby the hand levers 62 at the front of the furnace and are connected tothe grate bars by means of the integral cranks 63 on the grate barswhich engage the recesses 64 in the outer or rear faces of theactuating'bars.

The grate and its actuating means constitute no part of the presentinvention, but said construction is claimed in my co-pending applicationfiled of even date herewith, and which, together with the presentapplication has been divided from a parent pending application filed onthe 15th day of May, 1911, Serial No. 627,200.

The upper inclined faces of the overhanging parts 40 of the heatersections constitute the tapered lower sides of the magazine 41 whichdirect the fuel to the feed throat of the magazine. In order to controlthe feed of the fuel from the magazine to the fire box I have providedat the feed throat of the fire box movable and adjustable throat pieces90, 90 located at each side of said throat and extending fro-m front torear of the heater. The said throat pieces are transversely elongatedand are hollow so as to be water cooled; They are mounted at their ends,near their upper sides, on pivots which are supported in-the front andrear walls of the fire box, whereby the lower sides of said throatpieces may be adjusted toward and away from each other to vary theeffective feed opening of the throat, as.

indicated in full and dotted lines in Fig. 3, they being mounted toswing on pivot studs 91, 92, one of which may constitute a nipplethrough which water to cool the throat pieces may be delivered theretoor discharged therefrom, as more fully described in my aforesaid parentapplication. The throat pieces are designed to be held at their lowersides in adjusted positions relatively to each other by holding devices94, 95, each adapted to extend through one or the other or two or morelaterally adjacent openings in the fire box end walls. The holdingdevices 94 at one end of the heater constitute nipples through whichwater is fed to or withdrawn from the hollow throat pieces.

The adjustable feed throat constitutes, in itself, no part of thepresent invention and need not be further herein described.

Air is directed upon the upper surface of the fuel bed as it isdelivered into the fire box and at the zone where the volatile gases ofthe fuel are distilled through passages between the outer faces of thethroat pieces.

90 and the plates 97 arranged at the outer sides and longitudinally, ofsaid throat pieces, the said passages being open at thei lower sides, asclearly shown in Fig. 8. Air may be supplied to the rear ends of thesaid passages 96 through openings 97, 97 in the rear wall of the firebox to which fresh air may be directed by the branches of a Y- shapedfitting 98 which may receive air through the draft opening 99 at therear end of the furnace, as indicated by the arrow in Fig. 2. Air issupplied to support general combustion through said openings 99 and thepassages 100 which lead to the ash pit below the furnace. The supply ofair to the fresh air supply passage or flue 100 is controlled by a checkvalve 102 which is arranged to control the opening 99 and also tocontrol a check draft passage 103 to the smoke box 49, as indicated inFig. 2. When the valve 102 is raised to the position to cut ofi thepassage of air to the ash pit through the passage 100 cold air passesinto the smoke box through the passage 103 check the draft, and thuscheck down the fire. The said check valve 102, and a damper 104 in thesmoke box exit opening are shown as arranged to be simultaneouslycontrolled by a controlling device which constitutes the subject matterof an application for United States Letters Patent, filed by me on the19th day of May, 1911, Serial their innermost positions toward eachother,

and the hot air passages behind the same are not employed, the openings97 may be closed by any suitable removable closure. So also the Y-shapedair supply fitting 98 will be removed, and the opening 105 which afiordscommunication between the air supply passage 100 and said fitting may beclosed by the plate 106, shown in dotted lines in Fig. 2.

The rising pipe 118 through which hot water or steam is delivered to theheating system is branched, Figs. 1 and 2, and its branches 109, 109enter the opposite sides of the steam or water space at the top thereof.The return pipe 110 is likewise branched, with its branches 111 leadingto the opposite sides of the water space at the bottom thereof.

In the operation of the heater, coal or other fuel is directed from themagazine 41 .to the fire box and is burned on the grate 15, air beingsupplied to support combustion through the supply passage 99 and the hotair passages 96, if the latter be employed. The heated gases ofcombustion pass from the fire box or combustion chamber laterally and inopposite directions through the passages 28 to the fines &5, fromwhence, under normal operation, the heated gases pass forwardly throughthe flues 45 to the forward ends of the fines 46 and thence to the smokebox 49. As before stated the path of the flue travel may be varied orcontrolled by removal of one or more ofthe partition plates 80, and alsoby the opening of the direct draft damper 51.

Certain of the details described and shown are capable of variationwithin the scope and spirit of the invention. For instance, one side orhalf of the boiler, constructed in the general manner described, may beemployed with a fire box at one side, and with the same arrangement ofthe fiues and passages leading from the fire box to the smoke boX.

I claim as my invention 1. In a water heater or like structure, a boilerconsisting of two parts arranged at the sides of an intermediate firebox having at its bottom a grate and at its top between the side parts afuel feed opening, each of said side parts being provided with a pair offines arranged at a lower level than said fuel feed opening andprincipally at a lower level than the fire bed on said grate, the finesof each pair having free communication with each other at one end of theheater and a smoke box at the other end of the heater with which one ofthe fines of each pair has open communication, the boiler being providedabreast the fire box with a series of lateral passages which affordcommunication between the fire box and the fiues which do notcommunicate directly with the smoke box.

2. In a water heater or like structure, a boiler consisting of two partsarranged at the sides of an intermediate fire box having at its bottom agrate and at its top between the side parts a fuel feed opening, each ofsaid side parts being provided with a pair of fiues, arranged at a lowerlevel than said feed opening, the fiues of each pair having freecommunication with each other at one end of the heater and a smoke boxat the other end of the heater with which one of the fines of each pairhas open communication and normally closed direct draft dainpers locatedbetween the ends of the other fines and the smoke box, the boiler beingprovided abreast the fire box and above the pairs of fines with a seriesof lateral passages which afiord connnunication bet-ween the fire boxand the tines associated with said direct draft dampers.

3. In a water heater or like structure, a

boiler consisting of two parts arranged at the sides of an intermediatefire box, having at its bottom a grate and at its top between its sideparts a fuel opening, each of said side parts being provided below thelevel of said fuel opening with a pair of fiues, the fiues of each pairhaving open communication with each other at one end of the heater, aslnoke box at the other end of the heater with which one of the fines ofeach pair has open communication. the boiler being provided abreast ofthe fire box with a series of lateral passages which affordcommunication between the fire box and the fines not in opencommunication with the smoke box, and means afi'ording directcommunication at longitudinally spaced points between the fiues of eachpair to thereby vary the length of the path of travel of the heatedgases through the fiues.

at. In a water heater or like structure, a boiler consisting of twoparts arranged at the sides of an intermediate fire box, each of saidboiler parts being provided with a pair of parallel. fiues separated bya partition, the fines of each pair having open communication with eachother at one end of the heater, a smoke box at the other end of theheater with which one of the fines of each pair has open communication,the boiler being pro: vided abreast the fire box with a series oflateral passages which aiford communication between the fire box and thefiues not in open communication with the smoke box, the par: titionsbetween parallel flues being provided with a series of longitudinallyspaced openings, and closure plates having means to removably fix themover said openings.

5. In a water heater or like structure, the combination with a boilerand fire box, said boiler being provided with a pair of fines separatedby a partition, with means for directing the gases of combustion fromthe fire box to one of the tines, a smoke box at one end of the heaterwith which the other fine is in open communication, said fiues being inopen communication with each other at the other end of the heater, andmeans affording communication between said fines at longitudinallyspaced points to thereby vary the length of the path of travel of theheated gases through the fiues.

6. In a water heater or like structure, the combination with a boilerhaving a fire box, the said boiler being provided with a pair of fiuesseparated by a fixed partition, with means for directing the gases ofcombustion from the fire box to one of the fines, a smoke box at one endof the heater with which the heater wall being provided with an openingclosed by a door through which access may be had to the plates to removeand replace the same.

7. In a water heater or like structure, the combination with a boilerand a fire box, said boiler being provided with a pair of fiuesseparated by a partition, with means for directing the gases ofcombustion from the fire boX to one of the flues, a smoke box at one endof the heater with which the other flue is in open communication, adamper between the smoke box and the flue with which the fire boxcommunicates, said flues being in open communication with each other atthe other end of the heater, and means affording communication betweensaid flues at longitudinally spaced points to vary the length of thepath of travel of the heated gases through the flues.

In testimony, that I claim the foregoing as my invention I afiix mysignature in the presence of two witnesses, this 14th day of June, 1912.

7 CHARLES F. NEWPORT.

Witnesses:

G. E. DowLE, W. L. HALL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

